Slow-acting sectionalizing device.



H. M. JACOBS.

SLOW ACTING SEC'TIONALIZING DEVlCE. APPLICATION FlLED FEB. II. 1915. RENEWED WAY 21 I918.

Patented July 16, 1918.

2 SHEETS--SHEET INVENTOR WITNESSES H. M. JACOBS.

SLOW ACTING SECTIQNALIZING DEVICE. APPLICATION FILED FEB. I7, 1915. RENEWED MRY 21,1915.

1,272,4k6, Patented July 16, 1918.

2 SHEETS-SHEET 2.

/5 P /e A E 5 afifi [9 H 7 /8 W U -55 [0 i a Mg;

00 U 4 L //2 I31 l 24 L33 Q E 45? FIGS M WZCESSES INVEN R ALI Q'K'? M. v,

relay R almost closed by providing a spring contact finger-.60, which the relay is deenergized. Relay R issueris distorted as shown when gized. by th e circuit: froi'ntransformer 35, through wire 38, contact 60' ;40 of relay R \'vire 41,-energizing winding 16 of relav R- qwire-39 to transformer 35.

Thus this relay is energized when the back contact of is closed and when potential is sup:

in Fig 2 by refer- The 'energ-izn'ig circuit of Hence relay R A of the transmission closed. in. other words,

when'the switch P is closed. Magnet is connected directly across transformer by means, of wires 47 and 48 hence this ma net-isenergized whenever there is potential on section A of the transmission line. Magnet 22 is energized by the following cir cuit-jzafrom' transformer through wires 38 and 5 0 contact 5131 o f relay R. wire 52,

. energizing winding 49 of magnet 22. wires '53 land 39 to transformer 35. Therefore "magnet 22 is energized when contact 5l31 of relay R" is .closed- I haveshown all the slti'onsassumed when there is no current supplied'to thetransmimion system. .lVhen switch S, only section generator 3. for all circuit controllers l voltageis applied to the line by closing A is connected with are-open. Transformer 35. the primary. of

'- which is connectedto section A of the transmiss on line, 15 then energized, so that ourrentfl'ows through the winding of the. elec- 'tromagne t 25 of the device located he-v tween sections A and B. Relay R energized. its circuit. being closed at contact 40.- 'ofrelayR After a time interval determined by the adjustment of valve 33 that red 14 is fore energized.

of dash p0t'30, contact finger 31 of relay R m akescon tact with point 51. closing there by the, energizing circuit net 22, which attracts its armature 21. "so

cuit' controller Pis closed. Inasmuch as tact is also closed and relay R there- 'lhis relay attracts its armature 29,.and after a'time limitimposed by dashpot 30, contact 60-40 opens, thus opening at that fill-R tact 31-51-the circuit for magnet 22. but the point the-circuit fori'elay The opening of relay R 'opens at concircuit-cont-roller P cannot open ecause it is locked byilatch 24. "Ihe. object. in making relay R" slow-acting is to insure that circuit controller]? is fully closed before energy is may be so adjusted potential is applied to energized after the onlyenergy cons-umedlh ling apparatus :0 is the stnal apparatus vin the poof'the electromagpushed'upward and the cirtrom interfering mse'rolatmn fof level-.102

taken ofi' fro'in magnet that'is, by coin strut-ting relay R in this manner the parts fore controllerf l completes its movement, yet. energy will not be removed from magnet 22 until after such movement has been completed. If rel y K were quick-acting, conthat contact 27 closes bei tact 27 would have to be adjusted to close exactly at the moment controller P com- "pletes its movement, but such' delicacy of ad justment is diltieult to secure andmaintain. Hence. in the case of va circuit controller having little'inertia, a slow-acting means for dei nergizing the operating magnet is highly desirable.

r .l hus, when section. the section and potential "is applied one \al determined by'relay- R, anda-fter the circuit, controller haselos'ed relay Rt is-d'ean interval of time ;deter-. mined by relay R!. After-the circuit controller is closed. and rel ay. Rhas opened,

the controlamount used by nagnet and -rela v.R t When potential istaken off the line, ora short circuit at any section causes a drop in the voltage at thesectionalizing switchJmzIg- .netzireleases latch 24. Rod H'then drops by force of gravity, l and contact C. thus breaking the 'energiz- ,ingcircuit of. relay R".

thereby. opening switch isjth'en in condition to again close the switch automatnailly when potential 1s reapplied to the section. I

Referring now to Fig. 3, I have here shown circuit controller P form of. operating mechanism 0. Thismechanismcomprises. as before, a slow acting relay R. a switchoperating magnet 22 and a locking magnet 25. I provide further more aslow actingswitch M which may be of anytype. In this tigurel have shown it to consist ofa lever 103. 'pivotally mounted at 104, and connected by a lug 107 on switch -i'od H. A spring con tact finger 101 is attached to lever 103 to make contact with point 102. A dash pot 105 is operatively attached to lever 103,80 that when rod l-l is 106 will tend to t -n le'ver 103 cloekwise about pivot-104; but this motion is retarded by means of dash pot 105. As a result, spring contact finger tact with point 102 until switch I closed.

bearon lever 101- so back to its original(position-when:switchI?" opensv' ln ordeN-ao..g-n'cvent"dash pot 1105 with; .-l he counter clock-I valve'ltlttis made dtelay ll" is ener-- in the circuit: from a definite time after lug ltltl'isprovided .to

of the check valve type. gized by current flowing that lever 103 is turned I circuit controller Phet'ween that the ad acent section closes autoinatically after a predeterminedtime inter- All theapparatus loo with another spring 106 to a moved upward. spring" 101 does not break con:

grey 2,446

transformer through i iyire 120, eiineiccj 101' -10'2 'of switch M, energizing winding.

46 of relay :Rfifwire l 1Q to transformer 35. Hence relayR is energized when switch L1 closed and potential is applied vtos'ection A of the transmission line. Magnet maybe energized by em-rent. the circuit: from transformer 35,-through wires 120-and 109,-

energizing winding 49 ofmagnet contact of'relay R", .wire llOvto transformer- 35. ltlegnet, 25 is as before connected directly [acrosstransformer b'y 'wires '47 nets -are denergized and s wi tchesM are' and48fm -To explain theoperationof this modificaa d ja'cent sectionsinayhe connected by. i cir'}: cult controller P,l one of 'wlnch'is'shown';

' is similar :to tlrat shown-in Fig.3 'descrihedf nbm'e; except: tlnitxrdtnible pole's'witchiN s iised instead of single pole switch Ml An additional relay R similar to relay :RiS'x} tion, of the apparatus embodying-my invention,- assume the transmission-line. -1-2 of Fig. 41' denergized; All the circuit con trollers-P are then open, relays R and mag'-' closed. When/potential is applied-to the transmission :li'ne 'by; closing switch S only section A isenergized as before; -Relay R j- .of the mechanism'cbetween sections A and-B is energized, its'circuit being closed at cona tact 101-102 of switch M,nnd'-after an in? terval of time determined by the adjustment of valve33of dash pot f, contact 51-31- of relay R closes and current flows .in the energizing winding 4 9-of magnet 22; Armature 21 of'ma-gnet22 is therefore attracted and circuit,contro11er P 'is.;c1osed. Potential is thus applied to section B of.the"t rahs mission line.- As "before, magnet 25 locksgl .circuit controller P in 'the closed position.

l02 of switchN, Wires 132-,135and 133', transformer Hence 'rela-y-R'Vise 'is-n'ppliedto section A of thetran'sinis's i also provided. Relay-'11? may he-.energized""81D: through the following circuit: .froin the 45- former 3.5, through wires .130," -ne;g;zing f Winding. of relayR wire l3l,-'contact l(fi g'ized when switch N is closed arid-potent line. The energizing 'circuitj of relnYL'BV his asfollou's: from transformer'35*j, thro'ji ighfl relayv R";- ivir 115, cOntactlOI -AOQR wires 113 and 114, energizing Winding of switch N, wires 132", 135-a nd 112- a; 'Z tren .f'

gized when switch N is clesed an'd secti'onB -of the trzinsinissioirline is energized. H Qne 9 5 energizing. circuit for magnet 1's 'fron'i'j Contact 101- 102 of; switch M opens-after circuit c'ontrollerPis closed. Thereby re-' lay R: is 'deenergized, and opens at contact 51-31 the energizing circuit of magnet,

Hence, after cireuit' controller P is closed the only energy consumed bythe apparatus is' that re uired for magnet 25. It will beseen that ymal ing contact M slow-acting I insure that circuit controller P shallfbe fully closed behre magnet 22. is denergized,

and that I: accomplish this-without the neces- -sity 'for delicate-adjustment of -the parts,

That. is,. the movement of'erm 103 to opencontact 101-102 miiybe started as soon 'ascontroller? startsto move, but owingto the slow st-ting feature this contact-does not tions, A amlZ; and the beginning and end respectively of two other sections B and Y; hetwe'en sections B and Y, there may be, of course, any number of section. Each two open until ellafterthe movement of con} troller P is completed, hence magnet'22 remains energized until after its Work is ac complishe'd. I

Referring now .to Fig. 4, I have. here shown a transmission line comprisin wires. land 2 aml-capahle-of being supplied from either end or-hoth endshygenerators 3 and Winding 49 of'magnet-QQ,wires and-1'12 i to transformer 35. In :short, mag-net 22v transformer 35, wire contact 51-31 of .1 relay R, wire 13G, energizingjwinding: 1495 ofinag'net 22, wires and 133 "to tra ns fo'rmec35. Magnet 22 may also be etter- 1100 gize'd byl'the completion of the circnitz' from --transform'er 35f, through ivire 113, contact mayxbeenergized by current tlowingfrom "sections A or B of the trans1niss13n' line,

ineehanism between sections A and Bis-e113 1 i 'niissionline is divided into sectionsuA, B

. Y; Z. have shown only tWb-fuIlseQQ Toexplain the operation oft-h modifica--i tionof. the apparatus embodying .-my in\ env--. 110 tion, assume thatthe transmission"linefshoivn l 'infFig 4 is deenergized-' and lcireuit'con- :trollers P are open; I. .Then'; when I potential:

is applied 'tosection A of the transmission. 1 line byelosingjswitch S, relay'R of -the" ergized by current vfrom transformer :35; its" circuit being closed at contact 101 -1102 o;f switch N. After a time interval determined." r g by the adjustment-of ,val-ye'33pf dash potglgq inthe energizing circuit ofjmagnetf 2 mature 21 is attracted by electro andcloses: circuit controller .Pfglw 'i 1 30", cont-actf3l"5l;closes and current-flows 3 1 locked invthi's 'position'bv ina'gnet'i25 riser;

.plained' .hereinhefore. .r-henmcirciiitii-eogtroller closes sectio the transmissieh l s n g e 'Aslhd s thr- Nppe eii ircuit cdn o er- P es closed;

',.'Ihen'magnet- 22 would have been enering circuit of relay li -"which therefore "opens at contact 31,-51 theenergizing circuit for magnet 22;

If the transmission line had been encrgized from the opposite end by closing switch S, transformer 354' 'wouldhave been energized aud'rclay R would have closed its contact :1 3 7 -138 after the-lapse of time'det'ermincd'by'thc adjustment of valve 33'of'daslr pot offrcla'y R gized by current flowing from transformer 35", and by attracting its" armature 21, it

would have closed switch P and potential would be supplied to section A of the transmis sion line. Then switch- X would hate opened the encrgizing'circuit of relay R"? at contact 101102.' Switch have been locked in the closed position by magnet.25 'after section A had gized by the closing of switch I. Y -If the transmission line is dcencrgizcd by openingswitch S or S, or if due to some cause-or other potential fails at any of the -secti0nalizingswitches, magnets are .deenergizedand release their arma-tures' 24:. allowing-swit'che's I" to open by 'fo rce of" avity. Although I have-hereinshown and described only certain forms of apparatus em-- bodying my invention, it is understoodthat various changes and-modifications maybe made therein within the spirit and scope of the Y appended claims without '.dep arti ng from the spirit and scope of my invention.-

Having thus described my invention, what Iclann'is: I

1. In combination, a circuit controller, an

electromagnetic. device for theoperation' thereof, a relay, means for. retarding the closure of saidrelay, a circuit-for the electromagnetic device controlled' by a front contact of said relay, a. second .relay, a cir--,

cuit for the first relay controlled by a back contact of the second relay, means for-retarding the opening of said backcontact,

.and means controlled by the c ectromagnetic I would been "cucr 3. A circuit controller biased to one position,-"a'n electromagnetic device for operatmg saidcircuit controller agalnst itsfb as to another position, a relay for controlling said electromagnetic device, a circuit for en-jj ergizing said relay, a'contact operated. by

the circuit controller-for controlling the en ergizationeircuit of said relay and means for preventing the operation of said contact until adefinite period of time after theop:

'eration OfSilltlCll'Ctlli. controller.

4. In combination, a circuit controller, an.

electromagnetic device for. the operation thereof; a relay for controlling. said electromagnetic device, means for retarding the operation ofsaid' relay, a slow acting switch controlled bythc circuit control er 'for controlling said relay, and means distinct from said electron'iagnctic device for holding the circuit controller in the operated position.

-5.- In combination, a circuit controller,

biasedtothc open position, an electromagnetic devicejfor moving said controller to its closed position,'means for latching said controller in its-closed position, and slowacting means set into operation by the movement of said controller to its closed position for deencrgizingsaid electromagnetic device.

:6. In combination, a circuit controller biascd to the open position, an electromagnetic device for moving said member to its closed position. a-relay adaptedwhcn encrgized' 'to supply energy to said electromagnetic-device,means for latching said coutroller-in the closed position, a contact for deenergizing said relay, and. slow-acting means set lnto operation by the movement of said controller to its closed positionfor opening said contact.

7. A c rcuit controller biased to the open position, an clcc'troi'nagnetic device for moving said controller to closed position, means for latching said controller. in its closed position, a relay-adapted when closed to supply energy -'to said electronnignctic device, means for retarding the closure of said relay .when the latter is encrgize(l,'and slow acting means-set into operation by the movement of said controller-to its closed position for deencrgizing said relay.

In testin1ony \\hereof I atiix my signature in presence of two witnesses.

' HARRY M. JACOBS.

Witnesses: BENJAMIN B.- HULL,

Manmue'r E. IVOOLLEY. 

